Discover the secrets to crafting a mouthwatering, deli-style corned beef sandwich packed with tender, flavorful meat and all the traditional fixings for the perfect bite every time.

Introduction To The Classic Deli Style Corned Beef Sandwich

There’s just something about a classic deli sandwich that feels like a little bite of comfort, and this Reuben is no exception! Piled high with tender corned beef, tangy sauerkraut, melty Swiss cheese, and creamy dressing, all tucked between perfectly toasted rye bread—it’s the kind of sandwich that makes you slow down and savor every bite…and maybe swoon a bit!

What makes this version extra special is the Instant Pot corned beef. In a fraction of the time, you get juicy, fork-tender meat packed with rich, savory flavor—no long simmering required. It’s an easy, satisfying way to bring that classic deli-style Reuben right into your own kitchen.

Choosing The Right Corned Beef: Cuts And Quality

Let’s talk beef! Choosing the right corned beef is the first step to building a truly delicious deli-style Reuben at home, and it makes all the difference in both flavor and texture. When you’re at the store, you’ll typically find two main cuts: flat cut and point cut.

The flat cut is leaner, slices beautifully, and is perfect if you’re aiming for that classic stacked sandwich look.

The point cut, on the other hand, has more marbling, which means extra richness and tenderness—great for those who love a juicier, more flavorful bite.

Quality matters just as much as the cut. Look for a brisket with good color and even marbling throughout. Most corned beef comes pre-brined and includes a seasoning packet. For this recipe I chose a cut without any seasoning so I could add my own, and I highly recommend it.

If you have the option, choosing a well-trimmed piece with a balanced fat cap will give you the best results—enough fat to keep it moist, but not so much that it overwhelms the meat.

And don’t forget, how you plan to serve it can help guide your choice. If you want neat, deli-style slices for your Reuben, the flat cut is your best friend. If you’re after melt-in-your-mouth tenderness and bold flavor, the point cut is a wonderful option. Either way, starting with the right cut and quality ensures your Instant Pot corned beef turns out perfectly every time.

Preparing The Corned Beef: Cooking Methods For Tenderness

Preparing corned beef in the Instant Pot is one of those kitchen shortcuts that feels like a little secret—because you get that slow-cooked tenderness without spending the whole day in the kitchen. With just a bit of liquid and a few extra seasonings, the pressure cooker works its magic, breaking down the brisket into perfectly tender, flavorful slices. I don’t think I’ll ever make corned beef any other way! It’s just THAT good!

Ingredients for Instant Pot Corned Beef

• 3.5-4 lb corned beef brisket (if using my seasoning mix, discard the spice packet)
• 1 large onion
• 6–7 garlic cloves
• 4 cups low sodium beef broth
• 1 tsp mustard seeds
• 1 tsp peppercorns
• 4 whole cloves
• 1 tsp allspice berries
• ½ tsp crushed red pepper flakes

Step-by-step instructions for how to make corned beef in the Instant pot.

Step 1 — Quarter the onion and spread it in the bottom of an instant pot. Add garlic cloves and the homemade seasoning mix.

Step 2 — Place the brisket on top of the onions, fat cap up. I chose a “point cut” because I wanted more flavor from the marbling that is present in the point. Either cut works beautifully in the Instant Pot and in this sandwich.

Step 3 — Add the beef stock. This helps with steaming the beef in the Instant Pot and adds additional flavor to the corned beef.

Cooking Instructions for the Instant Pot

Step 4 — Close the lid of the instant pot and make sure it is latched! Make sure to turn the valve to “seal”.

TIP: I know we all have a fear of pressure-cooking, and that’s understandable. However, making sure safety tools are implemented appropriately insures a safe cooking experience.

Step 5 – Set the instant pot to pressure-cook on “stew/meat” setting for 75 minutes. It will take several minutes to heat up and build up the pressure before it begins cooking.

Once time is up, let it naturally release for 20 minutes. After that, you can carefully turn the valve and do a fast release to let the remaining pressure out.

Step 6 — Take the brisket out and place it on a baking sheet lined with aluminum foil. Make sure the “fat cap” is facing up.

Step 7 — Set the oven to a low broil setting and set the rack in the middle of the oven, about 8–10 inches away from the heating element.

Rub the top and sides of the corned beef brisket with spicy mustard.

Step 8 — Place in the oven, under the preheated broiler and let it caramelize until browned for a couple of minutes. Be sure to keep an eye on it, so the top doesn’t burn. It can happen very easily if not watched!

Step 9 — Take corned beef brisket out of the oven and slice the meat against the grain. Thankfully, with corned beef brisket, it is easy to see the grain. Look at the bottom of the brisket, since the fat cap is on the top, to see the grain.

I try to slice the corned beef about ¼ inch thick. It slices beautifully thanks to cooking it in the instant pot and you can see how tender and juicy the meat is!

Ingredients for building your own Rueben Sandwich

• 4-8 slices of Rye Bread
• Sliced Corned Beef
• Soften butter
• 2 cups fresh Sauerkraut, drained
• Spicy Mustard
• ½ cup thousand island dressing or Russian dressing
• 6-12 slices of Swiss Cheese

Selecting The Perfect Bread: Rye Vs. Other Options

When it comes to building the perfect Reuben sandwich, the bread is just as important as what’s inside. Traditional rye bread is the classic choice for a reason—it has that slightly tangy flavor and hearty texture that pairs beautifully with the rich corned beef and creamy dressing. It’s my favorite and just another reason to love this sandwich!

That said, don’t be afraid to branch out if rye isn’t your favorite. Marble rye, another favorite, offers a milder flavor with a beautiful swirl that still gives you that deli feel. Sourdough is another great option, with its crispy crust and subtle tang that complements the filling without overpowering it.

Traditional Fixings: Mustard, Pickles, Sauerkraut, And Cheese

When it comes to a truly classic deli-style Reuben, the fixings are what bring all those bold, savory flavors together in the most delicious way.

Tangy sauerkraut is a must—it adds that signature zip that cuts through the richness of the corned beef and cheese.

Swiss cheese is the traditional choice, melting into a creamy layer that ties everything together. And while many love a good Thousand Island or Russian dressing, a swipe of mustard can add a little extra bite and balance.

A crisp, cold dill pickle is the perfect companion to a warm, toasty Reuben. That crunchy, briny contrast refreshes your palate between bites and rounds out the whole deli experience.

Assembling The Sandwich: Layering For Optimal Flavor

Assembling your Reuben is where all those delicious layers come together, and a little attention to how you stack it makes all the difference.

Start by buttering the outside of each slice of rye bread. You’ll need two slices per sandwich you are making. This recipe will make 4 sandwiches for a 3+ pound brisket.

I like to use my electric griddle to toast the bread and melt the cheese. Set the temperature to 325 degrees. You can make this on the stove top in a skillet.

Spread your Russian or Thousand Island dressing on the inside of each slice of bread. I like to use my homemade sandwich/burger sauce. It’s easy to make and is delicious.

Place the bread slices buttered side down.

Add a layer of Swiss cheese right on top of the sauce on the one slice of bread. On the other slice of bread, add a generous pile of your warm, tender corned beef, followed by well-drained sauerkraut to keep everything flavorful but not watery.

The order really does matter here. By placing the cheese on the bread and keeping the sauerkraut nestled between the meat layers, you get that perfect balance in every bite—crispy, melty, tangy, and savory all at once. My husband said this sandwich is an explosion of flavors…and he isn’t wrong.

Once it hits the skillet or griddle, let it toast until golden brown and the cheese is melted. Bring the two halves together. It’s that careful layering and slow toasting that turns simple ingredients into a truly unforgettable sandwich.

Tips For Serving And Presentation

Serving a classic Reuben is all about keeping it warm, melty, and inviting. For that classic deli feel, slice the sandwich on a diagonal and serve it while the cheese is still gooey and the bread is crisp.

Presentation doesn’t have to be complicated to feel special. Stack the halves slightly offset on a plate so you can see all those delicious layers, and add a crisp dill pickle spear on the side for that traditional touch.

A handful of kettle chips or a simple side salad rounds everything out nicely and makes it feel like a true deli-style meal right at home.

Variations And Customization Ideas

One of the best things about a classic Reuben is how easy it is to make it your own while still keeping all those delicious, familiar flavors.

If you’re looking to switch things up, try a Turkey Reuben (often called a Rachel) using sliced turkey, or pastrami, instead of corned beef—it’s a little lighter but still just as satisfying. Swap the sauerkraut for coleslaw for a slightly sweeter, crunchier twist that pairs beautifully with the creamy dressing.

Cheese and bread are two simple ways to customize. While Swiss is traditional, provolone or even a mild cheddar can bring a different flavor profile to your sandwich. As mentioned above, if rye bread isn’t your favorite, sourdough or marble rye are wonderful alternatives that still give you that hearty, toasted base.

For those who love a little extra flair, consider adding caramelized onions for a touch of sweetness or a few slices of crispy bacon for added richness.

If you like a bit of heat, a dash of spicy mustard or a sprinkle of red pepper flakes can take things up a notch. However you build it, these little variations let you create a Reuben that’s perfectly suited to your taste while still delivering that warm, melty, deli-style goodness.

Conclusion: Enjoying Your Homemade Deli Style

There’s nothing quite like a warm, melty Reuben you’ve made right in your own kitchen. From the tender, flavorful instant pot corned beef to the perfectly toasted bread and all those classic layers in between, every bite is a reminder that simple ingredients can come together to create something truly special.

Other Favorite Sandwich Recipes

• Slow Cooker Meatball Sandwiches
• Crock Pot Italian Beef Sandwiches
• Chopped Italian Grinder Sandwiches
• Grilled Mediterranean Chicken Sandwiches
• The Best Homemade Copy-Cat Filet-O-Fish Sandwich

Whether you’re sharing it with family or enjoying a quiet moment with a plate all to yourself, which I highly recommend, this homemade deli-style sandwich brings that cozy, satisfying experience home.

Once you’ve made it from scratch—especially with that easy Instant Pot corned beef—you may find it’s not just a recipe, but a new favorite tradition worth coming back to again and again.

Thanks for stopping by my Nest today! I hope you’ll give this delicious sandwich a try and that you enjoy it as much as I do!

Happy Nesting Friends!

Printable Recipe Card